- Increase Greenhouse Gases by industry & power stations therefore Global Warming
- Acid Rain which can kill fish + plants
- Increase Temp in urban areas
Decrease + Increase Wind in urban areas
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What are the Consequences of the Enhanced Greenhouse Effect?
- Increase in Temp = Glacial Melt + Drought
- Increase in Unpredictable weather + Blurring of seasons
- Increase in Rainfall events
- Increase in Frequency + Severity of Hurricanes
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Are All Consequences of the Enhanced Greenhouse Effect negative?
No
- Some Areas are seeing an increase in agriculture yields
- Moderation of cloud temp improves quality of life
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What are the Causes of the Enhanced Greenhouse Effect?
- Burning fossil fuels increase concentration of greenhouse gases (e.g. power stations, factories)
- Deforestation increase amount of CO2 in the atmosphere
- Cattle Farming increase amount of methane released
- Car Emissions
Caused by an increase in green
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What are the Causes of a Rise in Car Emissions?
- World's population has increased so quickly there's an increase in demand for food + products therefore more greenhouse gases
- The world's population is getting richer so there is more demand for goods therefore more greenhouse gases
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Is Global Warming/Greenhouse Effect Natural?
YES
It is a natural process
Without it there would be no life on Earth
Global Warming caused by humans = Enhanced Greenhouse Effect
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How have Enhanced Greenhouse Effect impacted Urban Climates?
Urban climates are different to Rural climates
Tend to have:
- Hotter Temp
- Higher Rainfall
- Less Snow
- Slower wind but Quicker in wind tunnels
- Less Humidity
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Why are Urban Areas hotter than rural areas?
Urban Heat Island Effect
Example: London
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Reasons for Urban Heat Island Effect?
- Lots of Glass surfaces - reflects sun
- Lots of warmth generated by Central Heating
- Surface type + building materials are darker
- Lots of warmth from sun absorbed + released at night
- Pollution traps Solar Radiation, increasing temp
- Human activity
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Why is there HIGHER Rainfall in Urban areas than Rural areas?
There is a Link to higher temp in cities
- Air in cities is warmer because air rises + as it rises it cools, condensing and precipitates (i.e. rains)
- Convergence
- Air Pollution so there's more condensation nuclei
Warm air is forced to rise due to build
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Why is there both More & Less Wind in Urban areas than Rural areas?
Wind is SLOWER in cities due to Frictional Drag from buildings as Buildings act as a wind break BUT
There are areas of FASTER, turbulent air due to the Wind Tunnel Effect caused by wind flowing through narrow spaces in between tall buildings
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What is the Funneling + Higher-speed Wind called?
The Venturi Effect
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What is Humidity?
The amount of Water Vapour in the air
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Why is Humidity LOWER in Urban areas than Rural areas?
- Temp is Higher in cities because Air is Warmer
- Warmer Air can hold more water because Relative Humidity is Lower
- Drainage systems remove water from city so Less Evaporation = Less Water Vapour
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What is the Difference between the Greenhouse Effect & Enhanced Greenhouse Effect?
Greenhouse Effect is a natural process
&
Enhanced Greenhouse Effect is caused by humans + causing Climate Change
Both processes cause Global Warming
BUT
Enhanced greenhouse effect is more extreme due to climate change + humans
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Why is there LOWER rates of Snow in Urban areas than Rural areas?
Snow needs cool, cold + wet conditions
Cities tend to be Too Warm for snow
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Other cards in this set
Card 2
Front
What are the Consequences of the Enhanced Greenhouse Effect?
Back
- Increase in Temp = Glacial Melt + Drought
- Increase in Unpredictable weather + Blurring of seasons
- Increase in Rainfall events
- Increase in Frequency + Severity of Hurricanes
Card 3
Front
Are All Consequences of the Enhanced Greenhouse Effect negative?
Back
Card 4
Front
What are the Causes of the Enhanced Greenhouse Effect?
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